<volist name="list" id="v">
	<option value="{$v.parent.id}">{$v.parent.title}（{$v.parent.entitle}）</option>
	<volist name="v.child" id="vo"	>
		<option value="{$vo.id}">&nbsp;&nbsp;|—{$vo.title}（{$vo.entitle}）</option>
	</volist>
</volist>